/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Blueprints/IDisplayClusterBlueprintAPI.h
Returns true if current node is a primary node in a cluster.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Meta=(DisplayName="Is a primary node"), Category="NDisplay|Cluster") bool IsPrimary() const